Apparatus for delivering abrasive material.



H. W. HAGHMEISTER.

APPARATUS FOR DELIVERING ABRASIVE MATERIAL.

A PPLIOATION FILED AUG. 23, 1912.

1,063,434, Patented Jim 3, 1913.

2 SHEETS-SHEET 1.

FIGS! wamzsszs INvENTon M WV COLUMBIA PLANO-GRAPH co..w/\sHlNGTON. u c.

H. W. HAGHMEISTER.

APPARATUS FOR DELIVERING ABRASIVE MATERIAL.

APPLICATION FILED AUG. 23, 1912.

1 63,434. Patented June 3, 1913.

2 SHEBTS-SHEET 2.

FIG.4

WITNESSES FIG.2 iNVENTOR fim COLUMBlA PLANOGRAPH COqWASHINGTDN. D c.

UNliTD iSTAT PATENT FFlQ.

HENRY WILLIAM HAOI-IIVIEISTER, OF JAMES CITY, PENNSYLVANIA, ASSIGNOR TOJAMES W. CRUIKSHANK, OF PITTSBURGH, PENNSYLVANIA.

APPARATUS FOR DELIVERING ABRASIVE MATERIAL.

To all whom it may concern:

Be it known that I, HENRY XV. HAorI- MEISTER, a citizen of the UnitedStates, residing at James City, in the county of Elk and State ofPennsylvania, have invented certain new and useful Improvements inApparatus for Delivering Abrasive Material, of which the following is aspecifica tion.

My invention relates to the art of grinding plate glass and refersparticularly to apparatus for distributing sand or other abrasivematerial to the rotating table and runners, comprising a centrallyarranged receiving trough, adapted to receive the abrasive material fromany source of supply, a deflecting gate or valve thereto adapted tothrow it from one end to the other, and individual distributing troughsarranged to receive the material from the main trough so mounted as tobe capable of being set at varying angles to control the distribution ofthe abrasive material and deliver it at any desired point upon the tableand with relation to the runners.

In the drawings illustrating the invention-Figure l is a general planview showing a table, runners, and abrasive distributing mechanism. Fig.2 is a view of the apparatus in elevation. Fig. 3 is an enlargedsectional detail view of the main and secondary distributing troughs.Fig. 4 is a cross sectional view on the line IV. IV. of Fig. 3. Fig. 5is a cross sectional detail view through one of the secondarydistributing troughs taken on the line V. V. of Fig. 3.

The grinding apparatus comprises a main circular supporting table 2 andrunners 3, 4, of well-known construction, one of the runners, as 8,extending slightly beyond the center of the table 2, said runners beingso mounted as to be vertically adjustable with relation to the table andprovided with ordinary rotating mechanism, commonly employed.

Suspended above the main table at a position transversely between theadjacent edges of the runners, is the main trough 5 carried by anysuitable supporting framework, as shown, and having across its middleportion a butterfly gate valve 6, adapted to be thrown on its pivotalshaft 7 to one position or the other beyond the center. The bottom ofthe trough 5 preferably slopes Specification of Letters Patent.

Application filed August 23, 1912.

Patented June 3, 1913. Serial No. 716,637.

downwardly from the center in opposite directions, as shown, whereby todeliver the material into one or the other of supplemental distributingtroughs 8, 8. Said troughs are pivotally mounted at 9 in sup portinghangers 10, suitably suspended, as shown, and the troughs 8 are ofsufiicient length to extend downwardly toward the peripher 1 of thetable 2, and inwardly underneath the bottom of trough 5 toward thecenter of the table 2. The bottom of each trough 8 is provided with alongitudinal series of perforations 11, through which the abrasivematerial may fall at varying distances outwardly from the main trough,when the supplemental troughs are in their normal lowered position, asindicated at 2 and 3.

For the purpose of vertically manipulating the troughs 8, each trough isprovided with a flexible supporting member 12, as a chain or cablepassing around the supporting sheaves 13 in a suitable frame-work andprovided with equalizing counterweights 14:, as shown in Fig. 2.

Valve 6 is manipulated by a lever 15 and rod 16 having a handle terminal17 adapting it to throw the valve 6 to one position or the other wherebyto control the distribution of the material, which may be introducedinto trough 5 and against one side or the other of valve 6 from theterminal 18 of a supply pipe or conduit.

It will be understood that the abrasive material is delivered to thetrough from any classifying apparatus in the desired condition offineness as to quality for the Work intended at any particular stage,either dry or with a current of water.

The operation of the invention will be readily understood from theforegoing description. The normal inclination of the troughs 8 havingbeen determined, material will flow outwardly therethrough in onedirection or the other according to the setting of valve 6, and will bedelivered in varying amounts through the openings 11 across the face ofthe table, it being obvious that the inclination of the trough willcontrol the distribution of the material, whereby the operation may bereadily gaged within the judgment of the workman and the require mentsof the operation. Also, that the. size of the openings 11 or theirdistances apart may be varied throughout the length of the trough so asto further facilitate the distribution as desired. Also, that when it isdesired to distribute the material inwardly toward the center of thetable and between the adjacent edges of the runners, the trough may betilted, as indicated at the left side of Fig. 2, by manipulatingoperating mechanism, utilizing the inner end of the trough to dischargeall of the'material to the center.

The apparatus as a whole is extremely simple and eflicient inconstruction and operation; it possesses great flexibility as toadjustment and degree of distribution; it effects a saving in theabrasive material by delivering it directly to the points of immediateconsumption, and as a whole will be found to greatly improve andeconomize the operation of grinding plate glass.

It will be understood that the invention may be changed or modified indifferent details of construction or design by the skilled mechanic, andto suit varying conditions of application, but all such changes are tobe considered as within the scope of the following claims.

What I claim is:

1. The combination with a glass grinding table and its runners, of areceiving trough for abrasive material having a delivery terminal, asupplemental trough arranged to receive the material therefrom and to bevariously tilted and actuating means there for, substantially as setforth.

2. The combination with a glass grinding table and it runners, of areceiving trough for abrasive material having oppositely disposedterminals, supplemental troughs arranged to receive the materialtherefrom and therefor, substantially as set forth.

3. The combination with a glass grinding table and its runners, of areceiving trougi for abrasive material having a delivery terminal, asupplemental trough arranged to receive the material therefrom and to bevariously tilted I having a perforated bottom and actuating meanstherefor, substantially as set forth.

table and its runners, of a main trough provided with a deflecting valveand oppositely extending inclined delivery pert-ions, a pivot-allymounted distributing trough at each end of said main trough adapted toreceive the material therefrom, and means for vertically adjusting said.troughs, substantially as set forth.

5. The combination with a glass grinding table and its runners, of areceiving vessel located above the middle portion of the table andhaving an outlet terminal, a distributing trough adjustably mountedbelow the outlet terminal of said vessel and adapted to receive materialtherefrom and to deliver it to the middle portion or outer portion ofthe. table, and means for adjusting the distributing trough,substantially as set forth.

In testimony whereof I hereunto aHiX my signature in the presence of twowitnesses.

HENRY WILLIAM HACHMEISTER.

Vitnesses V Tnos. J. DOLPHIN,

M. W. Cox.

Copies of this patent may be obtained for five cent 5 each, byaddressing the Commissioner of iatents,

Washington, I). C.

to be variously tilted and actuating means 4. The combination with aglass grinding

